Answer:
5) A. 20.3 6) B. 18.5 7) A. 502.4 8) A. 452.4
Step-by-step explanation:
sphere volume = radius squared x pi x 4 / 3
2.2^2 = 4.84 x pi = 15.2 x 4 = 60.8 / 3 = 20.3
cone volume = radius squared x pi x height / 3
2.1^2 = 4.41 x pi = 13.9 x 4 = 55.4 / 3 = 18.5
cylinder volume = radius cubed x pi x height
8^4 = 64 x pi = 201.1 x 2.5 = 502.7
semi-sphere volume = radius cubed x pi x 2 / 3
6^3 = 216 x pi = 678.6 x 2 = 1357.2 / 3 = 452.4
